Heartbeats Longevity Trend 2026

Longevity is increasingly measured not in years, but in heartbeats—a metric reflecting cardiovascular efficiency and biological age. This concept tracks resting heart rate and heart rate variability to gauge cellular wear and tear. Used by biohackers and health coaches via wearables, it guides training intensity and stress management. Athletes and aging adults benefit most, using this data to optimize recovery and extend healthspan.